Dyeing machine



Jan. 13, 1931. A, 1 HALL I 1,789,040

DYEING MACHINE Filed Nov. vL41-, 192.9

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Patented Jan. 13, 1931 UNITED STATES ARCHIBALD JOHN HALL, on BUGLAWTON, ENGLAND' y y DYEING MACHINE Application filed November 14,1929, SerialNo. 407,178,and in Great Britain, November 30,19%;

his invention relates to means for collecting andv disposing of steam,- vapours, fumes, gases', andthe like which may be discharged from dyeing machines, 5, 'In the dyeing of textile materials, such as loose fibres, yarns, hose and fabrics, it is usual to immersesuch materials in a hot or boiling dye liquor which is agitated or circulated relative -to the material being 'i0 dyed. Such motion ofthe dye liquor-'is necessary for the even dyeing of the textile materials, and may be Aproduced by various methods. In certain types of modern 'dyeing machines, it has been found Apreferable to agitate or eirculate'the dye` liquor by blowing into it air or a mixture of air and steam. Then air aloneds used it is usual to use an air compressing machine, and when a mixture of air and steam is used it is usual to obtain and force this mixture into the dye liquor by means ofan airf steam injector. This last-named injector is a device well known to engineers and the makers of dyeing machines, and is constructed such that steam Vbeing blown into the dye liquor passes through a nozzle and thus draws air from the outside atmosphere so that a mixture of airand steam enter the dye liquor. It will be readily understood that during dyeing a` considerable quantity of steam or water vapour is discharged from the. dyeing machine into the surrounding atmosphere, and that this rdischarge is very objectionable. v According to the present.v open top'of the dye vat is provided with a hood or cover having a pipe or the like connection to means for exhaust-ing air, steam or vapour therefrom. Conveniently, this con- 40 nection may be made to .the inlet for the in-A jector, so that there will'be a continuous ref circulation of air, steam or vapour.

By this means any discharge of air, steam or vapour into the atmosphere of the dye 45 house is avoided, and in view of the re-eir- `an injector 3 connected to a source ofsteam invention, the

culation of snchair, gas Vor vapour, an in- -i crease in heat efficiency is obtained. n l The invention will beV more'particularly described With reference to thev accompanying drawing showing one form' of arrangement in perspective. 'i

The dyefvat 1 is provided at or towards i" its base with a perforated pipe 2 from which:y

tion of the dye liquor or goods or both in the vat l. f

The air or steam injection or air and steam injection may be effected by means lof 4. This injector 3 is 'provided with an air or to ahood 7 upon it, so that air, steam or vapouifrom above the dye liquor in the vat 1 will be drawn ofi' land re-circulated through the 'saidliquon i Y .air or steam may be forced for the cireula- 1 130.l inlet 5 and also a connection 6 to the vat l f1 I Windows 8 in the hood 7 are preferably provided to allow for inspection of the action within'v the vat. t

Means may be provided, ifidcsired, to ad-V i just the inflow through the air yinlet 5 or through the connection 6 lor both.,

vMeans may be provided at 9 for allowing an escape to waste of a small proportion of the mixture of air and steam passing from the injector to pipe 2in the .dye liquor, so that the volume of air and steam drawn by the injector out of the machine is slightly greater" than the volume of mixture injected into the machine. A The difference .between the drawn ont' volume and the injected v01- inne is made up'by the leakages of th'ejoint between the hood and the tank. yThis increases the efciency of the hood as air ,isl thereby drawn into the-machine and no mixture of steam and air is expelled through An apparatus for treating textileA mate-V.

rial, comprising :L vat, a closed cover thereon, an inlet pipe towards the bottom of said Vat, the outlet pipe towards the top of said vat, a connecting pipe between said outlet and inlet pipes and means connected to said connecting pipe to provide a continuous air or gas circulation therethrougmend a further connection to said connecting'pipe to 'allow a Vproportion of air or gas to flow to Waste.

In witness whereof, I; have hereunto signed my namepthis 2nd day of November,

ARCHIBALD JOHN HALL. 

